Why are my armpits sweating?

It is normal to sweat in summer, especially for those who work outdoors under the scorching sun. The whole body will be soaked. Sweating is the process of detoxification of the human body. Not sweating for a long time is not good for the body. People usually sweat on their foreheads, but why do they sweat under their arms? In fact, sweating under the armpits is very normal. It is the same as sweating on the forehead and can also achieve the effect of detoxification.

Axillary hyperhidrosis refers to the phenomenon of sweating in the armpits of the human body. There are two types of human sweat glands. One type is small and distributed throughout the body. Its main function is to sweat and regulate body temperature. The other type is larger, called apocrine glands, which are distributed in special areas such as the armpits and pubic area, with the most glands in the armpits.

The fluid secreted by the apocrine glands is originally an odorless liquid, but when the fluid is decomposed by the bacteria retained in the armpits, it becomes a smelly liquid, commonly known as body odor. Patients with excessive underarm sweating are prone to bacterial growth, and the odor is particularly strong, causing great trouble to their lives.

Causes of Excessive Axillary Sweating

Hyperhidrosis is caused by excessive secretion of the eccrine sweat glands, which manifests as abnormally excessive sweating throughout the body (generalized hyperhidrosis) or in a local area (localized hyperhidrosis). Hyperhidrosis can be secondary to certain mental and neurological diseases, metabolic diseases, endocrine disorders, tumors, drugs, etc., which is called secondary hyperhidrosis; the cause of primary hyperhidrosis is unknown, the most common sites of occurrence are the palms, armpits and soles, and occasionally occur in the head and neck, trunk and calves. The age of onset is mostly from childhood, worsens in adolescence and accompanies life. When the condition is serious, it not only affects the patient's work, life and study, but may even cause psychological disorders in the patient and make him afraid to participate in normal social activities. Local hyperhidrosis may be caused by sympathetic nerve damage or abnormal reaction, which increases the secretion of cholate acetate and leads to excessive sweat secretion by the eccrine glands.

Hyperhidrosis can be roughly divided into three categories based on the causes of the disease. One is caused by systemic diseases, such as endocrine disorders (hyperthyroidism, diabetes, hyperpituitarism, etc.), nervous system diseases, some infectious diseases (malaria, tuberculosis, etc.) and long-term illness causing physical weakness. Excessive sweating can be resolved as long as these systemic diseases are controlled. The second is psychogenic sweating, which is caused by high tension and emotional excitement, and is due to sympathetic nervous system disorders. Taking some sedatives orally (such as atropine, propantheline, belladonna mixture, etc.) has a temporary effect, but has side effects such as dry mouth. The third is gustatory sweating, which is another physiological phenomenon, such as sweating caused by eating certain irritating foods (chili, garlic, ginger, cocoa, coffee). This situation generally does not require treatment, only dietary restrictions.